Rush wildly through one’s life’s work (6)
I believe the answer is:
career
I believe this is a double definition.
'rush wildly' is the first definition.
(I've seen this before)
'one's life's work' is the second definition.
(I've seen this before)
'through' acts as a link.
(Other definitions for career that I've seen before include "Long-time occupation" , "Job (supposedly for life?)" , "Run out of control - job for life?" , "Lifetime's work" , "Vocation; rush" .)